Sayed Fathi El-Hawari, Norihiko Oyama, Yukako Koyama, Jun Tamura, Takaharu Itami, Tadashi Sano, Kazuto Yamashita. Sparing effect of tramadol, lidocaine, dexmedetomidine and their combination on the minimum alveolar concentration of sevoflurane in dogs. Journal of veterinary science. 2022. 23. 4. e53
Keiko Kato, Takaharu Itami, Ken Nomoto, Yusuke Endo, Jun Tamura, Norihiko Oyama, Tadashi Sano, Kazuto Yamashita. The anesthetic effects of intramuscular alfaxalone in dogs premedicated with low-dose medetomidine and/or butorphanol. The Journal of veterinary medical science. 2021. 83. 1. 53-61
Tamura J, Yoshida S, Nagata N, Shimbo G, Oyama N. Successful treatment of acute respiratory failure following hypertensive crisis in a dog with presumed pheochromocytoma or paraganglioma. Open Veterinary Journal. 2023. 13. 11. 1465-1470